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  <h1 class="title">简介</h1>
  <p class="para">
   ssdeep is a utility for creating and comparing fuzzy hashes or 
   <a href="http://dfrws.org/2006/proceedings/12-Kornblum.pdf" class="link external">&raquo;&nbsp;context-triggered piecewise 
   hashing</a>.
  </p>
  <p class="para">
   Fuzzy hashing can match signatures which have &quot;...sequences of identical
   bytes in the same order, although bytes in between these sequences 
   may be different in both content and length&quot;. (<a href="http://ssdeep.sourceforge.net" class="link external">&raquo;&nbsp;
   ssdeep project page</a>)
  </p>
  <p class="para">
   This extension provides functions for creating and comparing fuzzy hashes.
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